[Variance]

This was already answered in my big comment. There is no trend towards any unemployment at all; there never has been any unemployment associated with tech growth; tech growth is smoother and more iterative than people are conceptualizing, so it's not like there's any technical reason that this would change; and the current tech is no revolutionary exception to the trends of tech growth we've had in the past. Basically, you assume that a certain level of tech growth implies that people who can't keep up with it will be out of a job, but we empirically observe that there is no reason to suspect this. The sorts of events that could break these patterns are singularities, not mobile apps.